when the festival they have been looking forward to--------people will dress up to celebrate it
问题描述：
when the festival they have been looking forward to--------people will dress up to celebrate it
a.coming b.comes c.come d.came
是选b。不是简单的短语形式！！！
答
they have been looking forward是修饰the festival,所以对选项不起任何作用.讲解中是说，所属内容是时间状语从句的谓语动词，主句是将来时，从句是一般将来时。求解释when the festival (they have been looking forward to) comes这个部分是整个句子的时间状语从语，而people will dress up to celebrate it才是真正的主句。